[QUOTE=KCZ;1831309]Sorry, but I think the possible risk of small, barely visible abrasions in the paint from the cover is far preferable to tree sap/pitch and bird poop on the car. QUOTE]
I agree completely. Add to that sun damage and acid rain.
Iíve covered numerous cars over the years (including a brand new black one that was kept outside 2 years straight for 100% of the time) and have seen absolutely no ill effect on the paint. (Iíll admit none of them were a DD, so it was easier to keep them maintained and clean.) Aside from our DD, all of our cars, even while in a garage, are washed and then covered. The following is what I have used to avoid paint issues (your results may vary):
1. It is 100% mandatory that I wash the car before covering it.
2. I must keep it waxed religiously.
3. The cover must be kept TIGHT. (I used to use at least 4 straps snugged tightly across the bottom.)
4. A quality cover is absolutely required - I only use California Car Coverís SuperWeave material.
(For the Evora it cost about $325)
5. You must regularly wash the cover- SuperWeave can be washed in a home washing machine.
For my Evora, I custom ordered a Superweave cover. I had them add a 6Ē skirt all the way around to prevent dust from coming up from underneath for when I cover it. I have found that, even in a garage, it is best to cover the car. (It is currently hibernating for the winter under its cover while in a garage.) It prevents that minor bump from your wifeís purse, or belt scratch from the neighbor who stopped by to say hello.
By the way, California Car Cover will give a discount if ordering several covers at the same time. I ordered eight SuperWeave covers at one time and they knocked several hundred off the total.
I will admit that my DDs (2012, 2012 and 2012 work vehicle) do not get covered but are washed at least once a week and waxed at least every three months. I actually enjoy washing and waxing my cars. It is my therapy. And,yes, I am also anal.